•8-1. Determine the minimum horizontal force P required to hold the crate from sliding down the plane. The crate has a mass of 50 kg and the coefficient of static friction between the crate and the plane is µ, = 0.25.

pls

5. If a particle is rotating with an angular speed of 3.5 rad/s, how long does the particle take to go through one revolution?

Two spur gears are to have a ratio of 9:3 and a 7mm module. If the center distance is to be approximatively 200mm, calculate the following:o Circular pitch value;o Number of teeth on the wheel (gear);o Number of teeth of the pinion;o Pitch circle diameter of the gear;o Pitch circle diameter of the pinion;

DYNAMICS

Q4. The image below shows the motion trajectory of a ball. If the motion takes place in 8 seconds, determine the average velocity of the ball. Please pay attention: the number may change since it is randomized. Your answer must include 2 places after the decimal point, and proper Sl unit. Note, the image shows the positive direction of position, and negative sign must be included if the average velocity is against the positive direction. -5 -4 -3 -2 -1 0 1 2 3 4 Your Answer: Answer units 10 5 s (m)

Calculate the helicopter rotor blade’s rotational speed.

A planet has the same mass as the Earth. It also has a radius 2 times the Earth’s radius. If the Earth’s acceleration due to gravity is g, what is the acceleration due to gravity on the planet’s surface?

The Wright Brothers designed an engine and propeller that would produce enough forward motion to lift a simple light airplane. The 3 meter diameter blade rotated at a constant 330 rotations per minute (RPM). How does the RPM of the tip of one blade compare to the RPM of the middle of the one blade (halfway towards the center of the propeller)? The RPM is twice as much. The RMP is the same. The RPM is half as much. The RPM is one quarter as much.

Hi please help: Find the angular acceleration produced by the drill, assuming it to be constant